| 1 |
<?php |
| 2 |
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly |
| 3 |
|
| 4 |
class autoptimizeStyles extends autoptimizeBase { |
| 5 |
|
| 6 |
const ASSETS_REGEX = '/url\s*\(\s*(?!["\']?data:)(?![\'|\"]?[\#|\%|])([^)]+)\s*\)([^;},\s]*)/i'; |
| 7 |
|
| 8 |
private $css = array(); |
| 9 |
private $csscode = array(); |
| 10 |
private $url = array(); |
| 11 |
private $restofcontent = ''; |
| 12 |
private $datauris = false; |
| 13 |
private $hashmap = array(); |
| 14 |
private $alreadyminified = false; |
| 15 |
private $inline = false; |
| 16 |
private $defer = false; |
| 17 |
private $defer_inline = false; |
| 18 |
private $whitelist = ''; |
| 19 |
private $cssinlinesize = ''; |
| 20 |
private $cssremovables = array(); |
| 21 |
private $include_inline = false; |
| 22 |
private $inject_min_late = ''; |
| 23 |
|
| 24 |
//Reads the page and collects style tags |
| 25 |
public function read($options) { |
| 26 |
$noptimizeCSS = apply_filters( 'autoptimize_filter_css_noptimize', false, $this->content ); |
| 27 |
if ($noptimizeCSS) return false; |
| 28 |
|
| 29 |
$whitelistCSS = apply_filters( 'autoptimize_filter_css_whitelist', '', $this->content ); |
| 30 |
if (!empty($whitelistCSS)) { |
| 31 |
$this->whitelist = array_filter(array_map('trim',explode(",",$whitelistCSS))); |
| 32 |
} |
| 33 |
|
| 34 |
$removableCSS = apply_filters( 'autoptimize_filter_css_removables','' ); |
| 35 |
if (!empty($removableCSS)) { |
| 36 |
$this->cssremovables = array_filter(array_map('trim',explode(",",$removableCSS))); |
| 37 |
} |
| 38 |
|
| 39 |
$this->cssinlinesize = apply_filters('autoptimize_filter_css_inlinesize',256); |
| 40 |
|
| 41 |
// filter to "late inject minified CSS", default to true for now (it is faster) |
| 42 |
$this->inject_min_late = apply_filters('autoptimize_filter_css_inject_min_late',true); |
| 43 |
|
| 44 |
// Remove everything that's not the header |
| 45 |
if ( apply_filters('autoptimize_filter_css_justhead',$options['justhead']) == true ) { |
| 46 |
$content = explode('</head>',$this->content,2); |
| 47 |
$this->content = $content[0].'</head>'; |
| 48 |
$this->restofcontent = $content[1]; |
| 49 |
} |
| 50 |
|
| 51 |
// include inline? |
| 52 |
if( apply_filters('autoptimize_css_include_inline',$options['include_inline']) == true ) { |
| 53 |
$this->include_inline = true; |
| 54 |
} |
| 55 |
|
| 56 |
// what CSS shouldn't be autoptimized |
| 57 |
$excludeCSS = $options['css_exclude']; |
| 58 |
$excludeCSS = apply_filters( 'autoptimize_filter_css_exclude', $excludeCSS, $this->content ); |
| 59 |
if ($excludeCSS!=="") { |
| 60 |
$this->dontmove = array_filter(array_map('trim',explode(",",$excludeCSS))); |
| 61 |
} else { |
| 62 |
$this->dontmove = array(); |
| 63 |
} |
| 64 |
|
| 65 |
// forcefully exclude CSS with data-noptimize attrib |
| 66 |
$this->dontmove[]="data-noptimize"; |
| 67 |
|
| 68 |
// should we defer css? |
| 69 |
// value: true/ false |
| 70 |
$this->defer = $options['defer']; |
| 71 |
$this->defer = apply_filters( 'autoptimize_filter_css_defer', $this->defer, $this->content ); |
| 72 |
|
| 73 |
// should we inline while deferring? |
| 74 |
// value: inlined CSS |
| 75 |
$this->defer_inline = $options['defer_inline']; |
| 76 |
$this->defer_inline = apply_filters( 'autoptimize_filter_css_defer_inline', $this->defer_inline, $this->content ); |
| 77 |
|
| 78 |
// should we inline? |
| 79 |
// value: true/ false |
| 80 |
$this->inline = $options['inline']; |
| 81 |
$this->inline = apply_filters( 'autoptimize_filter_css_inline', $this->inline, $this->content ); |
| 82 |
|
| 83 |
// get cdn url |
| 84 |
$this->cdn_url = $options['cdn_url']; |
| 85 |
|
| 86 |
// Store data: URIs setting for later use |
| 87 |
$this->datauris = $options['datauris']; |
| 88 |
|
| 89 |
// noptimize me |
| 90 |
$this->content = $this->hide_noptimize($this->content); |
| 91 |
|
| 92 |
// exclude (no)script, as those may contain CSS which should be left as is |
| 93 |
if ( strpos( $this->content, '<script' ) !== false ) { |
| 94 |
$this->content = preg_replace_callback( |
| 95 |
'#<(?:no)?script.*?<\/(?:no)?script>#is', |
| 96 |
create_function( |
| 97 |
'$matches', |
| 98 |
'return "%%SCRIPT".AUTOPTIMIZE_HASH."%%".base64_encode($matches[0])."%%SCRIPT%%";' |
| 99 |
), |
| 100 |
$this->content |
| 101 |
); |
| 102 |
} |
| 103 |
|
| 104 |
// Save IE hacks |
| 105 |
$this->content = $this->hide_iehacks($this->content); |
| 106 |
|
| 107 |
// hide comments |
| 108 |
$this->content = $this->hide_comments($this->content); |
| 109 |
|
| 110 |
// Get <style> and <link> |
| 111 |
if(preg_match_all('#(<style[^>]*>.*</style>)|(<link[^>]*stylesheet[^>]*>)#Usmi',$this->content,$matches)) { |
| 112 |
foreach($matches[0] as $tag) { |
| 113 |
if ($this->isremovable($tag,$this->cssremovables)) { |
| 114 |
$this->content = str_replace($tag,'',$this->content); |
| 115 |
} else if ($this->ismovable($tag)) { |
| 116 |
// Get the media |
| 117 |
if(strpos($tag,'media=')!==false) { |
| 118 |
preg_match('#media=(?:"|\')([^>]*)(?:"|\')#Ui',$tag,$medias); |
| 119 |
$medias = explode(',',$medias[1]); |
| 120 |
$media = array(); |
| 121 |
foreach($medias as $elem) { |
| 122 |
if (empty($elem)) { $elem="all"; } |
| 123 |
$media[] = $elem; |
| 124 |
} |
| 125 |
} else { |
| 126 |
// No media specified - applies to all |
| 127 |
$media = array('all'); |
| 128 |
} |
| 129 |
$media = apply_filters( 'autoptimize_filter_css_tagmedia',$media,$tag ); |
| 130 |
|
| 131 |
if(preg_match('#<link.*href=("|\')(.*)("|\')#Usmi',$tag,$source)) { |
| 132 |
// <link> |
| 133 |
$explUrl = explode('?',$source[2],2); |
| 134 |
$url = $explUrl[0]; |
| 135 |
$path = $this->getpath($url); |
| 136 |
|
| 137 |
if($path!==false && preg_match('#\.css$#',$path)) { |
| 138 |
// Good link |
| 139 |
$this->css[] = array($media,$path); |
| 140 |
}else{ |
| 141 |
// Link is dynamic (.php etc) |
| 142 |
$tag = ''; |
| 143 |
} |
| 144 |
} else { |
| 145 |
// inline css in style tags can be wrapped in comment tags, so restore comments |
| 146 |
$tag = $this->restore_comments($tag); |
| 147 |
preg_match('#<style.*>(.*)</style>#Usmi',$tag,$code); |
| 148 |
|
| 149 |
// and re-hide them to be able to to the removal based on tag |
| 150 |
$tag = $this->hide_comments($tag); |
| 151 |
|
| 152 |
if ( $this->include_inline ) { |
| 153 |
$code = preg_replace('#^.*<!\[CDATA\[(?:\s*\*/)?(.*)(?://|/\*)\s*?\]\]>.*$#sm','$1',$code[1]); |
| 154 |
$this->css[] = array($media,'INLINE;'.$code); |
| 155 |
} else { |
| 156 |
$tag = ''; |
| 157 |
} |
| 158 |
} |
| 159 |
|
| 160 |
// Remove the original style tag |
| 161 |
$this->content = str_replace($tag,'',$this->content); |
| 162 |
} else { |
| 163 |
// excluded CSS, minify if getpath |
| 164 |
if (preg_match('#<link.*href=("|\')(.*)("|\')#Usmi',$tag,$source)) { |
| 165 |
$explUrl = explode('?',$source[2],2); |
| 166 |
$url = $explUrl[0]; |
| 167 |
$path = $this->getpath($url); |
| 168 |
|
| 169 |
if ($path && apply_filters('autoptimize_filter_css_minify_excluded',false)) { |
| 170 |
$_CachedMinifiedUrl = $this->minify_single($path); |
| 171 |
|
| 172 |
if (!empty($_CachedMinifiedUrl)) { |
| 173 |
// replace orig URL with URL to cache |
| 174 |
$newTag = str_replace($url, $_CachedMinifiedUrl, $tag); |
| 175 |
} else { |
| 176 |
$newTag = $tag; |
| 177 |
} |
| 178 |
|
| 179 |
// remove querystring from URL |
| 180 |
if ( !empty($explUrl[1]) ) { |
| 181 |
$newTag = str_replace("?".$explUrl[1],"",$newTag); |
| 182 |
} |
| 183 |
|
| 184 |
// and replace |
| 185 |
$this->content = str_replace($tag,$newTag,$this->content); |
| 186 |
} |
| 187 |
} |
| 188 |
} |
| 189 |
} |
| 190 |
return true; |
| 191 |
} |
| 192 |
// Really, no styles? |
| 193 |
return false; |
| 194 |
} |
| 195 |
|
| 196 |
// Joins and optimizes CSS |
| 197 |
public function minify() { |
| 198 |
foreach($this->css as $group) { |
| 199 |
list($media,$css) = $group; |
| 200 |
if(preg_match('#^INLINE;#',$css)) { |
| 201 |
// <style> |
| 202 |
$css = preg_replace('#^INLINE;#','',$css); |
| 203 |
$css = $this->fixurls(ABSPATH.'/index.php',$css); |
| 204 |
$tmpstyle = apply_filters( 'autoptimize_css_individual_style', $css, "" ); |
| 205 |
if ( has_filter('autoptimize_css_individual_style') && !empty($tmpstyle) ) { |
| 206 |
$css=$tmpstyle; |
| 207 |
$this->alreadyminified=true; |
| 208 |
} |
| 209 |
} else { |
| 210 |
//<link> |
| 211 |
if($css !== false && file_exists($css) && is_readable($css)) { |
| 212 |
$cssPath = $css; |
| 213 |
$cssContents = file_get_contents($cssPath); |
| 214 |
$cssHash = md5($cssContents); |
| 215 |
$css = $this->fixurls($cssPath,$cssContents); |
| 216 |
$css = preg_replace('/\x{EF}\x{BB}\x{BF}/','',$css); |
| 217 |
$tmpstyle = apply_filters( 'autoptimize_css_individual_style', $css, $cssPath ); |
| 218 |
if (has_filter('autoptimize_css_individual_style') && !empty($tmpstyle)) { |
| 219 |
$css=$tmpstyle; |
| 220 |
$this->alreadyminified=true; |
| 221 |
} else if ($this->can_inject_late($cssPath,$css)) { |
| 222 |
$css="/*!%%INJECTLATER%%".base64_encode($cssPath)."|".$cssHash."%%INJECTLATER%%*/"; |
| 223 |
} |
| 224 |
} else { |
| 225 |
// Couldn't read CSS. Maybe getpath isn't working? |
| 226 |
$css = ''; |
| 227 |
} |
| 228 |
} |
| 229 |
|
| 230 |
foreach($media as $elem) { |
| 231 |
if(!isset($this->csscode[$elem])) |
| 232 |
$this->csscode[$elem] = ''; |
| 233 |
$this->csscode[$elem] .= "\n/*FILESTART*/".$css; |
| 234 |
} |
| 235 |
} |
| 236 |
|
| 237 |
// Check for duplicate code |
| 238 |
$md5list = array(); |
| 239 |
$tmpcss = $this->csscode; |
| 240 |
foreach($tmpcss as $media => $code) { |
| 241 |
$md5sum = md5($code); |
| 242 |
$medianame = $media; |
| 243 |
foreach($md5list as $med => $sum) { |
| 244 |
// If same code |
| 245 |
if($sum === $md5sum) { |
| 246 |
//Add the merged code |
| 247 |
$medianame = $med.', '.$media; |
| 248 |
$this->csscode[$medianame] = $code; |
| 249 |
$md5list[$medianame] = $md5list[$med]; |
| 250 |
unset($this->csscode[$med], $this->csscode[$media]); |
| 251 |
unset($md5list[$med]); |
| 252 |
} |
| 253 |
} |
| 254 |
$md5list[$medianame] = $md5sum; |
| 255 |
} |
| 256 |
unset($tmpcss); |
| 257 |
|
| 258 |
// Manage @imports, while is for recursive import management |
| 259 |
foreach ($this->csscode as &$thiscss) { |
| 260 |
// Flag to trigger import reconstitution and var to hold external imports |
| 261 |
$fiximports = false; |
| 262 |
$external_imports = ""; |
| 263 |
|
| 264 |
// remove comments to avoid importing commented-out imports |
| 265 |
$thiscss_nocomments = preg_replace('#/\*.*\*/#Us','',$thiscss); |
| 266 |
|
| 267 |
while(preg_match_all('#@import +(?:url)?(?:(?:\\(([\"\']?)(?:[^\"\')]+)\\1\\)|([\"\'])(?:[^\"\']+)\\2)(?:[^,;\"\']+(?:,[^,;\"\']+)*)?)(?:;)#m',$thiscss_nocomments,$matches)) { |
| 268 |
foreach($matches[0] as $import) { |
| 269 |
if ($this->isremovable($import,$this->cssremovables)) { |
| 270 |
$thiscss = str_replace($import,'',$thiscss); |
| 271 |
$import_ok = true; |
| 272 |
} else { |
| 273 |
$url = trim(preg_replace('#^.*((?:https?:|ftp:)?//.*\.css).*$#','$1',trim($import))," \t\n\r\0\x0B\"'"); |
| 274 |
$path = $this->getpath($url); |
| 275 |
$import_ok = false; |
| 276 |
if (file_exists($path) && is_readable($path)) { |
| 277 |
$code = addcslashes($this->fixurls($path,file_get_contents($path)),"\\"); |
| 278 |
$code = preg_replace('/\x{EF}\x{BB}\x{BF}/','',$code); |
| 279 |
$tmpstyle = apply_filters( 'autoptimize_css_individual_style', $code, "" ); |
| 280 |
if ( has_filter('autoptimize_css_individual_style') && !empty($tmpstyle)) { |
| 281 |
$code=$tmpstyle; |
| 282 |
$this->alreadyminified=true; |
| 283 |
} else if ($this->can_inject_late($path,$code)) { |
| 284 |
$code="/*!%%INJECTLATER".AUTOPTIMIZE_HASH."%%".base64_encode($path)."|".md5($code)."%%INJECTLATER%%*/"; |
| 285 |
} |
| 286 |
|
| 287 |
if(!empty($code)) { |
| 288 |
$tmp_thiscss = preg_replace('#(/\*FILESTART\*/.*)'.preg_quote($import,'#').'#Us','/*FILESTART2*/'.$code.'$1',$thiscss); |
| 289 |
if (!empty($tmp_thiscss)) { |
| 290 |
$thiscss = $tmp_thiscss; |
| 291 |
$import_ok = true; |
| 292 |
unset($tmp_thiscss); |
| 293 |
} |
| 294 |
unset($code); |
| 295 |
} |
| 296 |
} |
| 297 |
} |
| 298 |
|
| 299 |
if (!$import_ok) { |
| 300 |
// external imports and general fall-back |
| 301 |
$external_imports .= $import; |
| 302 |
$thiscss = str_replace($import,'',$thiscss); |
| 303 |
$fiximports = true; |
| 304 |
} |
| 305 |
} |
| 306 |
$thiscss = preg_replace('#/\*FILESTART\*/#','',$thiscss); |
| 307 |
$thiscss = preg_replace('#/\*FILESTART2\*/#','/*FILESTART*/',$thiscss); |
| 308 |
|
| 309 |
// and update $thiscss_nocomments before going into next iteration in while loop |
| 310 |
$thiscss_nocomments=preg_replace('#/\*.*\*/#Us','',$thiscss); |
| 311 |
} |
| 312 |
unset($thiscss_nocomments); |
| 313 |
|
| 314 |
// add external imports to top of aggregated CSS |
| 315 |
if($fiximports) { |
| 316 |
$thiscss=$external_imports.$thiscss; |
| 317 |
} |
| 318 |
} |
| 319 |
unset($thiscss); |
| 320 |
|
| 321 |
// $this->csscode has all the uncompressed code now. |
| 322 |
foreach($this->csscode as &$code) { |
| 323 |
// Check for already-minified code |
| 324 |
$hash = md5($code); |
| 325 |
do_action( 'autoptimize_action_css_hash', $hash ); |
| 326 |
$ccheck = new autoptimizeCache($hash,'css'); |
| 327 |
if($ccheck->check()) { |
| 328 |
$code = $ccheck->retrieve(); |
| 329 |
$this->hashmap[md5($code)] = $hash; |
| 330 |
continue; |
| 331 |
} |
| 332 |
unset($ccheck); |
| 333 |
|
| 334 |
// Do the imaging! |
| 335 |
$imgreplace = array(); |
| 336 |
preg_match_all( self::ASSETS_REGEX, $code, $matches ); |
| 337 |
|
| 338 |
if ( ($this->datauris == true) && (function_exists('base64_encode')) && (is_array($matches)) ) { |
| 339 |
foreach($matches[1] as $count => $quotedurl) { |
| 340 |
$iurl = trim($quotedurl," \t\n\r\0\x0B\"'"); |
| 341 |
|
| 342 |
// if querystring, remove it from url |
| 343 |
if (strpos($iurl,'?') !== false) { $iurl = strtok($iurl,'?'); } |
| 344 |
|
| 345 |
$ipath = $this->getpath($iurl); |
| 346 |
|
| 347 |
$datauri_max_size = 4096; |
| 348 |
$datauri_max_size = (int) apply_filters( 'autoptimize_filter_css_datauri_maxsize', $datauri_max_size ); |
| 349 |
$datauri_exclude = apply_filters( 'autoptimize_filter_css_datauri_exclude', ""); |
| 350 |
if (!empty($datauri_exclude)) { |
| 351 |
$no_datauris=array_filter(array_map('trim',explode(",",$datauri_exclude))); |
| 352 |
foreach ($no_datauris as $no_datauri) { |
| 353 |
if (strpos($iurl,$no_datauri)!==false) { |
| 354 |
$ipath=false; |
| 355 |
break; |
| 356 |
} |
| 357 |
} |
| 358 |
} |
| 359 |
|
| 360 |
if($ipath != false && preg_match('#\.(jpe?g|png|gif|bmp)$#i',$ipath) && file_exists($ipath) && is_readable($ipath) && filesize($ipath) <= $datauri_max_size) { |
| 361 |
$ihash=md5($ipath); |
| 362 |
$icheck = new autoptimizeCache($ihash,'img'); |
| 363 |
if($icheck->check()) { |
| 364 |
// we have the base64 image in cache |
| 365 |
$headAndData=$icheck->retrieve(); |
| 366 |
$_base64data=explode(";base64,",$headAndData); |
| 367 |
$base64data=$_base64data[1]; |
| 368 |
} else { |
| 369 |
// It's an image and we don't have it in cache, get the type |
| 370 |
$explA=explode('.',$ipath); |
| 371 |
$type=end($explA); |
| 372 |
|
| 373 |
switch($type) { |
| 374 |
case 'jpeg': |
| 375 |
$dataurihead = 'data:image/jpeg;base64,'; |
| 376 |
break; |
| 377 |
case 'jpg': |
| 378 |
$dataurihead = 'data:image/jpeg;base64,'; |
| 379 |
break; |
| 380 |
case 'gif': |
| 381 |
$dataurihead = 'data:image/gif;base64,'; |
| 382 |
break; |
| 383 |
case 'png': |
| 384 |
$dataurihead = 'data:image/png;base64,'; |
| 385 |
break; |
| 386 |
case 'bmp': |
| 387 |
$dataurihead = 'data:image/bmp;base64,'; |
| 388 |
break; |
| 389 |
default: |
| 390 |
$dataurihead = 'data:application/octet-stream;base64,'; |
| 391 |
} |
| 392 |
|
| 393 |
// Encode the data |
| 394 |
$base64data = base64_encode(file_get_contents($ipath)); |
| 395 |
$headAndData=$dataurihead.$base64data; |
| 396 |
|
| 397 |
// Save in cache |
| 398 |
$icheck->cache($headAndData,"text/plain"); |
| 399 |
} |
| 400 |
unset($icheck); |
| 401 |
|
| 402 |
// Add it to the list for replacement |
| 403 |
$imgreplace[$matches[0][$count]] = str_replace($quotedurl,$headAndData,$matches[0][$count]); |
| 404 |
} else { |
| 405 |
// just cdn the URL if applicable |
| 406 |
if (!empty($this->cdn_url)) { |
| 407 |
$imgreplace[$matches[0][$count]] = str_replace($quotedurl,$this->maybe_cdn_urls($quotedurl),$matches[0][$count]); |
| 408 |
} |
| 409 |
} |
| 410 |
} |
| 411 |
} else if ((is_array($matches)) && (!empty($this->cdn_url))) { |
| 412 |
// change urls to cdn-url |
| 413 |
foreach($matches[1] as $count => $quotedurl) { |
| 414 |
$imgreplace[$matches[0][$count]] = str_replace($quotedurl,$this->maybe_cdn_urls($quotedurl),$matches[0][$count]); |
| 415 |
} |
| 416 |
} |
| 417 |
|
| 418 |
if(!empty($imgreplace)) { |
| 419 |
$code = str_replace(array_keys($imgreplace),array_values($imgreplace),$code); |
| 420 |
} |
| 421 |
|
| 422 |
// Minify |
| 423 |
if (($this->alreadyminified!==true) && (apply_filters( "autoptimize_css_do_minify", true))) { |
| 424 |
if (class_exists('Minify_CSS_Compressor')) { |
| 425 |
$tmp_code = trim(Minify_CSS_Compressor::process($code)); |
| 426 |
} else if(class_exists('CSSmin')) { |
| 427 |
$cssmin = new CSSmin(); |
| 428 |
if (method_exists($cssmin,"run")) { |
| 429 |
$tmp_code = trim($cssmin->run($code)); |
| 430 |
} elseif (@is_callable(array($cssmin,"minify"))) { |
| 431 |
$tmp_code = trim(CssMin::minify($code)); |
| 432 |
} |
| 433 |
} |
| 434 |
if (!empty($tmp_code)) { |
| 435 |
$code = $tmp_code; |
| 436 |
unset($tmp_code); |
| 437 |
} |
| 438 |
} |
| 439 |
|
| 440 |
$code = $this->inject_minified($code); |
| 441 |
|
| 442 |
$tmp_code = apply_filters( 'autoptimize_css_after_minify', $code ); |
| 443 |
if (!empty($tmp_code)) { |
| 444 |
$code = $tmp_code; |
| 445 |
unset($tmp_code); |
| 446 |
} |
| 447 |
|
| 448 |
$this->hashmap[md5($code)] = $hash; |
| 449 |
} |
| 450 |
unset($code); |
| 451 |
return true; |
| 452 |
} |
| 453 |
|
| 454 |
//Caches the CSS in uncompressed, deflated and gzipped form. |
| 455 |
public function cache() { |
| 456 |
// CSS cache |
| 457 |
foreach($this->csscode as $media => $code) { |
| 458 |
$md5 = $this->hashmap[md5($code)]; |
| 459 |
|
| 460 |
$cache = new autoptimizeCache($md5,'css'); |
| 461 |
if(!$cache->check()) { |
| 462 |
// Cache our code |
| 463 |
$cache->cache($code,'text/css'); |
| 464 |
} |
| 465 |
$this->url[$media] = AUTOPTIMIZE_CACHE_URL.$cache->getname(); |
| 466 |
} |
| 467 |
} |
| 468 |
|
| 469 |
//Returns the content |
| 470 |
public function getcontent() { |
| 471 |
// restore IE hacks |
| 472 |
$this->content = $this->restore_iehacks($this->content); |
| 473 |
|
| 474 |
// restore comments |
| 475 |
$this->content = $this->restore_comments($this->content); |
| 476 |
|
| 477 |
// restore (no)script |
| 478 |
if ( strpos( $this->content, '%%SCRIPT%%' ) !== false ) { |
| 479 |
$this->content = preg_replace_callback( |
| 480 |
'#%%SCRIPT'.AUTOPTIMIZE_HASH.'%%(.*?)%%SCRIPT%%#is', |
| 481 |
create_function( |
| 482 |
'$matches', |
| 483 |
'return base64_decode($matches[1]);' |
| 484 |
), |
| 485 |
$this->content |
| 486 |
); |
| 487 |
} |
| 488 |
|
| 489 |
// restore noptimize |
| 490 |
$this->content = $this->restore_noptimize($this->content); |
| 491 |
|
| 492 |
//Restore the full content |
| 493 |
if(!empty($this->restofcontent)) { |
| 494 |
$this->content .= $this->restofcontent; |
| 495 |
$this->restofcontent = ''; |
| 496 |
} |
| 497 |
|
| 498 |
// Inject the new stylesheets |
| 499 |
$replaceTag = array("<title","before"); |
| 500 |
$replaceTag = apply_filters( 'autoptimize_filter_css_replacetag', $replaceTag, $this->content ); |
| 501 |
|
| 502 |
if ($this->inline == true) { |
| 503 |
foreach($this->csscode as $media => $code) { |
| 504 |
$this->inject_in_html('<style type="text/css" media="'.$media.'">'.$code.'</style>',$replaceTag); |
| 505 |
} |
| 506 |
} else { |
| 507 |
if ($this->defer == true) { |
| 508 |
$preloadCssBlock = ""; |
| 509 |
$noScriptCssBlock = "<noscript id=\"aonoscrcss\">"; |
| 510 |
$defer_inline_code=$this->defer_inline; |
| 511 |
if(!empty($defer_inline_code)){ |
| 512 |
if ( apply_filters( 'autoptimize_filter_css_critcss_minify', true ) ) { |
| 513 |
$iCssHash = md5($defer_inline_code); |
| 514 |
$iCssCache = new autoptimizeCache($iCssHash,'css'); |
| 515 |
if($iCssCache->check()) { |
| 516 |
// we have the optimized inline CSS in cache |
| 517 |
$defer_inline_code=$iCssCache->retrieve(); |
| 518 |
} else { |
| 519 |
if (class_exists('Minify_CSS_Compressor')) { |
| 520 |
$tmp_code = trim(Minify_CSS_Compressor::process($defer_inline_code)); |
| 521 |
} else if(class_exists('CSSmin')) { |
| 522 |
$cssmin = new CSSmin(); |
| 523 |
$tmp_code = trim($cssmin->run($defer_inline_code)); |
| 524 |
} |
| 525 |
if (!empty($tmp_code)) { |
| 526 |
$defer_inline_code = $tmp_code; |
| 527 |
$iCssCache->cache($defer_inline_code,"text/css"); |
| 528 |
unset($tmp_code); |
| 529 |
} |
| 530 |
} |
| 531 |
} |
| 532 |
$code_out='<style type="text/css" id="aoatfcss" media="all">'.$defer_inline_code.'</style>'; |
| 533 |
$this->inject_in_html($code_out,$replaceTag); |
| 534 |
} |
| 535 |
} |
| 536 |
|
| 537 |
foreach($this->url as $media => $url) { |
| 538 |
$url = $this->url_replace_cdn($url); |
| 539 |
|
| 540 |
//Add the stylesheet either deferred (import at bottom) or normal links in head |
| 541 |
if($this->defer == true) { |
| 542 |
|
| 543 |
// Filter to modify the onload attribute - passes value and the stylesheet url |
| 544 |
$preloadOnLoad = apply_filters('autoptimize_filter_css_preload_onload', "this.rel='stylesheet'", $url); |
| 545 |
|
| 546 |
$preloadCssBlock .= '<link rel="preload" as="style" media="'.$media.'" href="'.$url.'" onload="'.$preloadOnLoad.'" />'; |
| 547 |
$noScriptCssBlock .= '<link type="text/css" media="'.$media.'" href="'.$url.'" rel="stylesheet" />'; |
| 548 |
|
| 549 |
} else { |
| 550 |
if (strlen($this->csscode[$media]) > $this->cssinlinesize) { |
| 551 |
$this->inject_in_html('<link type="text/css" media="'.$media.'" href="'.$url.'" rel="stylesheet" />',$replaceTag); |
| 552 |
} else if (strlen($this->csscode[$media])>0) { |
| 553 |
$this->inject_in_html('<style type="text/css" media="'.$media.'">'.$this->csscode[$media].'</style>',$replaceTag); |
| 554 |
} |
| 555 |
} |
| 556 |
} |
| 557 |
|
| 558 |
if($this->defer == true) { |
| 559 |
$preloadPolyfill = '<script data-cfasync=\'false\'>/*! loadCSS. [c]2017 Filament Group, Inc. MIT License */ |
| 560 |
!function(a){"use strict";var b=function(b,c,d){function e(a){return h.body?a():void setTimeout(function(){e(a)})}function f(){i.addEventListener&&i.removeEventListener("load",f),i.media=d||"all"}var g,h=a.document,i=h.createElement("link");if(c)g=c;else{var j=(h.body||h.getElementsByTagName("head")[0]).childNodes;g=j[j.length-1]}var k=h.styleSheets;i.rel="stylesheet",i.href=b,i.media="only x",e(function(){g.parentNode.insertBefore(i,c?g:g.nextSibling)});var l=function(a){for(var b=i.href,c=k.length;c--;)if(k[c].href===b)return a();setTimeout(function(){l(a)})};return i.addEventListener&&i.addEventListener("load",f),i.onloadcssdefined=l,l(f),i};"undefined"!=typeof exports?exports.loadCSS=b:a.loadCSS=b}("undefined"!=typeof global?global:this); |
| 561 |
/*! loadCSS rel=preload polyfill. [c]2017 Filament Group, Inc. MIT License */ |
| 562 |
!function(a){if(a.loadCSS){var b=loadCSS.relpreload={};if(b.support=function(){try{return a.document.createElement("link").relList.supports("preload")}catch(b){return!1}},b.poly=function(){for(var b=a.document.getElementsByTagName("link"),c=0;c<b.length;c++){var d=b[c];"preload"===d.rel&&"style"===d.getAttribute("as")&&(a.loadCSS(d.href,d,d.getAttribute("media")),d.rel=null)}},!b.support()){b.poly();var c=a.setInterval(b.poly,300);a.addEventListener&&a.addEventListener("load",function(){b.poly(),a.clearInterval(c)}),a.attachEvent&&a.attachEvent("onload",function(){a.clearInterval(c)})}}}(this);</script>'; |
| 563 |
$noScriptCssBlock .= "</noscript>"; |
| 564 |
$this->inject_in_html($preloadCssBlock.$noScriptCssBlock,$replaceTag); |
| 565 |
|
| 566 |
// Adds preload polyfill at end of body tag |
| 567 |
$this->inject_in_html( |
| 568 |
apply_filters('autoptimize_css_preload_polyfill', $preloadPolyfill), |
| 569 |
array('</body>','before') |
| 570 |
); |
| 571 |
} |
| 572 |
} |
| 573 |
|
| 574 |
//Return the modified stylesheet |
| 575 |
return $this->content; |
| 576 |
} |
| 577 |
|
| 578 |
static function fixurls($file, $code) { |
| 579 |
// Switch all imports to the url() syntax |
| 580 |
$code = preg_replace( '#@import ("|\')(.+?)\.css.*?("|\')#', '@import url("${2}.css")', $code ); |
| 581 |
|
| 582 |
if ( preg_match_all( self::ASSETS_REGEX, $code, $matches ) ) { |
| 583 |
$file = str_replace( WP_ROOT_DIR, '/', $file ); |
| 584 |
$dir = dirname( $file ); // Like /themes/expound/css |
| 585 |
|
| 586 |
// $dir should not contain backslashes, since it's used to replace |
| 587 |
// urls, but it can contain them when running on Windows because |
| 588 |
// fixurls() is sometimes called with `ABSPATH . 'index.php'` |
| 589 |
$dir = str_replace( '\\', '/', $dir ); |
| 590 |
unset( $file ); // not used below at all |
| 591 |
|
| 592 |
$replace = array(); |
| 593 |
foreach ( $matches[1] as $k => $url ) { |
| 594 |
// Remove quotes |
| 595 |
$url = trim( $url," \t\n\r\0\x0B\"'" ); |
| 596 |
$noQurl = trim( $url, "\"'" ); |
| 597 |
if ( $url !== $noQurl ) { |
| 598 |
$removedQuotes = true; |
| 599 |
} else { |
| 600 |
$removedQuotes = false; |
| 601 |
} |
| 602 |
|
| 603 |
if ( '' === $noQurl ) { |
| 604 |
continue; |
| 605 |
} |
| 606 |
|
| 607 |
$url = $noQurl; |
| 608 |
if ( '/' === $url{0} || preg_match( '#^(https?://|ftp://|data:)#i', $url ) ) { |
| 609 |
// URL is protocol-relative, host-relative or something we don't touch |
| 610 |
continue; |
| 611 |
} else { |
| 612 |
// Relative URL |
| 613 |
$newurl = preg_replace( '/https?:/', '', str_replace( ' ', '%20', AUTOPTIMIZE_WP_ROOT_URL . str_replace( '//', '/', $dir . '/' . $url ) ) ); |
| 614 |
|
| 615 |
// Hash the url + whatever was behind potentially for replacement |
| 616 |
// We must do this, or different css classes referencing the same bg image (but |
| 617 |
// different parts of it, say, in sprites and such) loose their stuff... |
| 618 |
$hash = md5( $url . $matches[2][$k] ); |
| 619 |
$code = str_replace( $matches[0][$k], $hash, $code ); |
| 620 |
|
| 621 |
if ( $removedQuotes ) { |
| 622 |
$replace[$hash] = "url('" . $newurl . "')" . $matches[2][$k]; |
| 623 |
} else { |
| 624 |
$replace[$hash] = 'url(' . $newurl . ')' . $matches[2][$k]; |
| 625 |
} |
| 626 |
} |
| 627 |
} |
| 628 |
|
| 629 |
if ( ! empty( $replace ) ) { |
| 630 |
// Sort the replacements array by key length in desc order (so that the longest strings are replaced first) |
| 631 |
$keys = array_map( 'strlen', array_keys( $replace ) ); |
| 632 |
array_multisort( $keys, SORT_DESC, $replace ); |
| 633 |
|
| 634 |
// Replace URLs found within $code |
| 635 |
$code = str_replace( array_keys( $replace ), array_values( $replace ), $code ); |
| 636 |
} |
| 637 |
} |
| 638 |
|
| 639 |
return $code; |
| 640 |
} |
| 641 |
|
| 642 |
private function ismovable($tag) { |
| 643 |
if ( apply_filters('autoptimize_filter_css_dontaggregate', false) ) { |
| 644 |
return false; |
| 645 |
} else if (!empty($this->whitelist)) { |
| 646 |
foreach ($this->whitelist as $match) { |
| 647 |
if(strpos($tag,$match)!==false) { |
| 648 |
return true; |
| 649 |
} |
| 650 |
} |
| 651 |
// no match with whitelist |
| 652 |
return false; |
| 653 |
} else { |
| 654 |
if (is_array($this->dontmove)) { |
| 655 |
foreach($this->dontmove as $match) { |
| 656 |
if(strpos($tag,$match)!==false) { |
| 657 |
//Matched something |
| 658 |
return false; |
| 659 |
} |
| 660 |
} |
| 661 |
} |
| 662 |
|
| 663 |
//If we're here it's safe to move |
| 664 |
return true; |
| 665 |
} |
| 666 |
} |
| 667 |
|
| 668 |
private function can_inject_late($cssPath,$css) { |
| 669 |
$consider_minified_array = apply_filters('autoptimize_filter_css_consider_minified', false, $cssPath); |
| 670 |
if ( $this->inject_min_late !== true ) { |
| 671 |
// late-inject turned off |
| 672 |
return false; |
| 673 |
} else if ( (strpos($cssPath,"min.css") === false) && ( str_replace($consider_minified_array, '', $cssPath) === $cssPath ) ) { |
| 674 |
// file not minified based on filename & filter |
| 675 |
return false; |
| 676 |
} else if ( strpos($css,"@import") !== false ) { |
| 677 |
// can't late-inject files with imports as those need to be aggregated |
| 678 |
return false; |
| 679 |
} else if ( (strpos($css,"@font-face")!==false ) && ( apply_filters("autoptimize_filter_css_fonts_cdn",false)===true) && (!empty($this->cdn_url)) ) { |
| 680 |
// don't late-inject CSS with font-src's if fonts are set to be CDN'ed |
| 681 |
return false; |
| 682 |
} else if ( (($this->datauris == true) || (!empty($this->cdn_url))) && preg_match("#background[^;}]*url\(#Ui",$css) ) { |
| 683 |
// don't late-inject CSS with images if CDN is set OR is image inlining is on |
| 684 |
return false; |
| 685 |
} else { |
| 686 |
// phew, all is safe, we can late-inject |
| 687 |
return true; |
| 688 |
} |
| 689 |
} |
| 690 |
|
| 691 |
private function maybe_cdn_urls($inUrl) { |
| 692 |
$url = trim($inUrl," \t\n\r\0\x0B\"'"); |
| 693 |
$urlPath = parse_url($url,PHP_URL_PATH); |
| 694 |
|
| 695 |
// exclude fonts from CDN except if filter returns true |
| 696 |
if ( !preg_match('#\.(woff2?|eot|ttf|otf)$#i',$urlPath) || apply_filters('autoptimize_filter_css_fonts_cdn',false) ) { |
| 697 |
$cdn_url = $this->url_replace_cdn($url); |
| 698 |
} else { |
| 699 |
$cdn_url = $url; |
| 700 |
} |
| 701 |
|
| 702 |
return $cdn_url; |
| 703 |
} |
| 704 |
} |
| 705 |
|
